Here is the full list of unlockable achievements for El Shaddai: Ascension of the Metatron for the Xbox 360.
Adept (30) – Earn a G rank in every chapter at the EASY difficulty level
Angels (15) – Finish all chapters at the EASY difficulty level
Benevolent Missionary (15) – Defeat more than 500 enemies
Benevolent Savior (30) – Defeat more than 1000 enemies
Conqueror (90) – Earn a G rank in every chapter at the HARD difficulty level
Dominions (30) – Finish all chapters at the HARD difficulty level
I’ll take the best you have (15) – Take every weapons from all of the enemies and finish Chapter 10
Living Miracle (30) – Finish all chapters without a single Game Over
Lord of the Metatron (0) – Earn all of the Achievements
Principalities (15) – Finish all chapters at the NORMAL difficulty level
Seraphim (90) – Finish all chapters at the EXTRA difficulty level
Time In The Spotlight (15) – Defeat 50 enemies during Armaros show
Here are the thirty seven secret achievements you can unlock in the game:
A Reliable Friend (15) – Raise your boost level to 10
A Warm Welcome (15) – Finish Chapter 07
An Unfriendly Greeting (15) – Finish Chapter 03
Arch Master (15) – Defeat 300 enemies with Arch
Aren’t You Happy, Too? (15) – Finish Chapter 08
Battle for Honor (15) – Register for the Score Leaderboard
Counterstrike Artist (30) – Execute 100 Perfect Guards
Escape From The Darkness (15) – Finish the Darkness stage
Finish Chapter 02 (15) – Welcome to the Tower
Gale Master (15) – Defeat 300 enemies with Gale
Good Listener (15) – Obtain all of the Freemen’s Notes
Hunter-Gatherer (15) – Take 100 weapons from enemies
I Will Mourn You (30) – Obtain all entries in the Prophecies of Ishtar
I’m Not Afraid of Watcher 1 (15) – Defeat Nether Sariel without executing a recover
I’m Not Afraid of Watcher 2 (15) – Defeat Nether Ezekiel without executing a recover
I’m Not Afraid of Watcher 3 (15) – Defeat Nether Azazel without executing a recover
I’m Not Afraid of Watcher 4 (15) – Defeat Dark Armaros without executing a recover
Indomitable Soul (15) – Execute 50 recovers
Journey’s End (15) – Finish Chapter 01
Martial Arts Master (15) – Defeat 100 enemies with bare hands
My Acrobatic Friend (30) – Finish Chapter 08 without dying
My Beautiful Children… (15) – Finish Chapter 10
Nephilim Party (15) – Finish Chapter 04
No Problem (30) – Finish any chapter without collecting any armor-recovery items
Out of Control (15) – Break 500 destroyable objects
Pushing the Limit (15) – Launch an Overboost
Quite a Find (10) – Collect the Eyes of Truth
Rest in Peace (15) – Defeat 50 of Souls of the Beloved
Show No Mercy (15) – Execute 100 Guard Breaks
The armor okay? If not, I could… (15) – Finish Chapter 10 without taking any weapons from enemies
The Journey Begins (15) – Finish Chapter 00
The Last Job (15) – Finish Chapter 11
The name is too long (15) – Have your weapon destroyed
Unnatural Evolution (15) – Finish Chapter 06
Veil Master (15) – Defeat 300 enemies with Veil
Visitor from Beyond Time (15) – Finish Chapter 05
Welcome Back, Enoch (15) – Finish Chapter 09
What’s Yours Is Mine (15) – Acquire all the Pearls from the servant beasts